1 files changed, 123 insertions, 0 deletions
diff --git a/cpukit/include/dev/i2c/gpio-nxp-pca9535.h b/cpukit/include/dev/i2c/gpio-nxp-pca9535.h
new file mode 100644
index 0000000000..1ebc1a3d4d
--- /dev/null
+++ b/cpukit/include/dev/i2c/gpio-nxp-pca9535.h
@@ -0,0 +1,123 @@
+/**
+ * @file
+ *
+ * @brief GPIO NXP PCA9535 Driver API
+ *
+ * @ingroup I2CGPIONXPPCA9535
+ */
+
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _DEV_I2C_GPIO_NXP_PCA9539_H
+#define _DEV_I2C_GPIO_NXP_PCA9539_H
+
+#include <dev/i2c/i2c.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ * @defgroup I2CGPIONXPPCA9535 GPIO NXP PCA9535 Driver
+ *
+ * @ingroup I2CDevice
+ *
+ * @brief Driver for NXP PCA9535 16-bit GPIO device.
+ *
+ * @{
+ */
+
+int i2c_dev_register_gpio_nxp_pca9535(
+  const char *bus_path,
+  const char *dev_path,
+  uint16_t address
+);
+
+#define GPIO_NXP_PCA9535_GET_INPUT (I2C_DEV_IO_CONTROL + 0)
+
+#define GPIO_NXP_PCA9535_GET_OUTPUT (I2C_DEV_IO_CONTROL + 1)
+
+#define GPIO_NXP_PCA9535_SET_OUTPUT (I2C_DEV_IO_CONTROL + 2)
+
+#define GPIO_NXP_PCA9535_CLEAR_AND_SET_OUTPUT (I2C_DEV_IO_CONTROL + 3)
+
+#define GPIO_NXP_PCA9535_GET_POL_INV (I2C_DEV_IO_CONTROL + 4)
+
+#define GPIO_NXP_PCA9535_SET_POL_INV (I2C_DEV_IO_CONTROL + 5)
+
+#define GPIO_NXP_PCA9535_GET_CONFIG (I2C_DEV_IO_CONTROL + 6)
+
+#define GPIO_NXP_PCA9535_SET_CONFIG (I2C_DEV_IO_CONTROL + 7)
+
+static inline int gpio_nxp_pca9535_get_input(int fd, uint16_t *val)
+{
+  return ioctl(fd, GPIO_NXP_PCA9535_GET_INPUT, val);
+}
+
+static inline int gpio_nxp_pca9535_get_output(int fd, uint16_t *val)
+{
+  return ioctl(fd, GPIO_NXP_PCA9535_GET_OUTPUT, val);
+}
+
+static inline int gpio_nxp_pca9535_set_output(int fd, uint16_t val)
+{
+  return ioctl(fd, GPIO_NXP_PCA9535_SET_OUTPUT, (void *)(uintptr_t) val);
+}
+
+static inline int gpio_nxp_pca9535_clear_and_set_output(
+  int fd,
+  uint16_t clear,
+  uint16_t set
+)
+{
+  uint32_t clear_and_set = ((uint32_t) set << 16) | (uint32_t) clear;
+
+  return ioctl(
+    fd,
+    GPIO_NXP_PCA9535_CLEAR_AND_SET_OUTPUT,
+    (void *)(uintptr_t) clear_and_set
+  );
+}
+
+static inline int gpio_nxp_pca9535_get_polarity_inversion(
+  int fd,
+  uint16_t *val
+)
+{
+  return ioctl(fd, GPIO_NXP_PCA9535_GET_POL_INV, val);
+}
+
+static inline int gpio_nxp_pca9535_set_polarity_inversion(int fd, uint16_t val)
+{
+  return ioctl(fd, GPIO_NXP_PCA9535_SET_POL_INV, (void *)(uintptr_t) val);
+}
+
+static inline int gpio_nxp_pca9535_get_config(int fd, uint16_t *val)
+{
+  return ioctl(fd, GPIO_NXP_PCA9535_GET_CONFIG, val);
+}
+
+static inline int gpio_nxp_pca9535_set_config(int fd, uint16_t val)
+{
+  return ioctl(fd, GPIO_NXP_PCA9535_SET_CONFIG, (void *)(uintptr_t) val);
+}
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _DEV_I2C_GPIO_NXP_PCA9539_H */